1. Lots and lots of plants.
Turns out my mother, who maintains a little jungle in the corner of the living room, has been right on trend all along. Indoor plants of every stripe were big for 2014, and will be for 2015, too.

2. Warm metallics, especially copper.
A few years ago, silver was everywhere: now the inevitable flip-flop has occurred, and warm metals like gold, rose gold, and bronze are riding a wave of popularity. Copper is especially big — and lends itself especially well to DIY projects.